Everyone had a pet theory when Princess Diana was killed last August. It was too traumatic an event to accept as a simple, avoidable accident, even for us, the public who never knew her, let alone for her family and that of Dodi Fayed, who died beside her.
And alongside the grubby merchandisers who have cashed in on her memory with ghastly Diana tat, there are the journalists who could not believe the driver, Henri Paul just drove too fast.
Some of them made a documentary that was screened last week on British television, in a predictable roar of publicity.
Diana - The Secret Behind The Crash was, if nothing else, a hot property, and last week at least two local television stations were in the running to buy the local broadcasting rights.
Wharf Cable finally secured them, at a cost of 'around $10 million', according to official sources. This is an extraordinary sum for a one-off documentary, even these days when programming departments of all local television stations are constantly raising the financial stakes in order to buy the programmes they think we want to see.
It is a reflection of the continuing fascination we all have for Diana, a subject that remains as impossible to understand as the causes of the crash itself.
